Magneto-resistive effect type magnetic head
    1.
    发明授权
    Magneto-resistive effect type magnetic head 失效
    磁阻效应型磁头

    公开(公告)号:US4443826A

    公开(公告)日:1984-04-17

    申请号:US314417

    申请日:1981-10-23

    CPC分类号: G11B5/3954 G11B5/1278

    摘要: The present invention is directed to improvements in a perpendicular magnetic recording-reproducing head. One of the improvements comprises the use of a magneto-resistive effect element to form the main pole of the magnetic head. This feature of the invention enables a stable and faithful reproduction of information recorded in a magnetic recording medium up to the shortest wavelength and to obtain a sufficiently large reproducing output signal. Another improvement comprises the use of such magneto-resistive effect elements in layers. The multilayer structure permits production of a large reproducing output and also an optimum S/N ratio even if the width of track is small.

    摘要翻译: 本发明涉及垂直磁记录再现头的改进。 其中一个改进包括使用磁阻效应元件来形成磁头的主极。 本发明的这一特征使得能够稳定和忠实地再现记录在最短波长的磁记录介质中的信息并获得足够大的再现输出信号。 另一个改进包括在层中使用这种磁阻效应元件。 即使轨道的宽度小,多层结构也允许产生大的再现输出和最佳的S / N比。

    Magnetic head of magnetic reluctance effect type and a method for making
the same
    2.
    发明授权
    Magnetic head of magnetic reluctance effect type and a method for making the same 失效
    磁阻效应型磁头及其制造方法

    公开(公告)号:US4438470A

    公开(公告)日:1984-03-20

    申请号:US284708

    申请日:1981-07-20

    摘要: A process for making magnetic reluctance effect type magnetic heads comprises forming the magnetic sensor, first lead and second lead sections in series by use of the same material. The noise in the magnetic head is reduced, yet the output is increased by making the first lead section of a width larger than that of the magnetic sensor and second lead sections. The reproducing sensitivity of the magnetic head is increased by forming a plurality of magnetic sensor sections in series within a rectangular area. The control of the magnetic characteristics of the head are controlled for providing less dispersion by providing a substrate on which a magnetic reluctance effect type material varying in electric resistance in response to any magnetic field is formed into a film, the substrate being optionally etched by the use of photolithography to form the magnetic sensor sections, the first lead section and the second lead section on the substrate in given configurations.

    摘要翻译: 用于制造磁阻效应型磁头的方法包括使用相同的材​​料串联形成磁传感器,第一引线部分和第二引线部分。 磁头中的噪声减小,但是通过使第一引线部分的宽度大于磁传感器和第二引线部分的宽度来增加输出。 通过在矩形区域内串联形成多个磁传感器部分来提高磁头的再现灵敏度。 控制磁头的磁特性的控制是通过提供一种衬底来提供较少的色散,其中响应于任何磁场而在电阻上变化的磁阻效应型材料形成在膜中,该衬底任选地被 在给定的构造中使用光刻法在基底上形成磁传感器部分,第一引线部分和第二引线部分。

    Temperature compensated magnetoresistive effect thin film magnetic sensor
    3.
    发明授权
    Temperature compensated magnetoresistive effect thin film magnetic sensor 失效
    温度补偿磁阻效应薄膜磁传感器

    公开(公告)号:US4506220A

    公开(公告)日:1985-03-19

    申请号:US317386

    申请日:1981-11-02

    IPC分类号: G01R33/09 G01R33/06 H01L43/08

    CPC分类号: G01R33/09

    摘要: A magnetoresistive effect thin film magnetic sensor has a temperature compensating magnetoresistive effect (MR) element arranged non-parallel to a signal detecting MR element to prevent the temperature compensating MR element from being influenced by an external magnetic signal field. Alternatively, it has an L-shaped temperature compensating MR element arranged closely to the signal detecting MR element to prevent the temperature compensating MR element from being influenced by the external magnetic signal field. It further has a magnet member arranged closely to or in contact with the temperature compensating MR element to enhance a positional precision of the temperature compensation and reduce a time lag.

    摘要翻译: 磁阻效应薄膜磁传感器具有与信号检测MR元件不平行布置的温度补偿磁阻效应(MR)元件,以防止温度补偿MR元件受外部磁信号场的影响。 或者,其具有与信号检测MR元件紧密配置的L形温度补偿MR元件,以防止温度补偿MR元件受外部磁信号场的影响。 它还具有与温度补偿MR元件紧密接触或与温度补偿MR元件接触的磁体,以提高温度补偿的位置精度并减少时滞。

    Magnetic recording medium
    7.
    发明授权
    Magnetic recording medium 失效
    磁记录介质

    公开(公告)号:US4673612A

    公开(公告)日:1987-06-16

    申请号:US813853

    申请日:1985-12-27

    IPC分类号: C08L79/08 G11B5/73 G11B5/704

    摘要: A magnetic recording medium, comprising an aromatic polyimide film and a magnetic layer of a ferromagnetic material provided on the aromatic polyimide film. The aromatic polyimide film is prepared by imidation of a film formed from a solution of a polyamic acid solution obtained by copolymerization of an aromatic amine component comprising at least 30 mole % of p-phenylene diamine and 0 to 70 mole % of diaminodiphenylether, respectively based on the total amount of the aromatic amine component, and a tetracarboxylic acid dianhydride.

    摘要翻译: 一种磁记录介质,包括芳族聚酰亚胺膜和设置在芳族聚酰亚胺膜上的铁磁材料的磁性层。 芳族聚酰亚胺膜通过将由通过将包含至少30摩尔%的对苯二胺和0至70摩尔%的二氨基二苯基醚的芳族胺组分分别基于共聚合得到的聚酰胺酸溶液的溶液 关于芳族胺组分的总量和四羧酸二酐。

    Transfering bloch lines using perpendicular and in-plane pulse magnetic
fields
    8.
    发明授权
    Transfering bloch lines using perpendicular and in-plane pulse magnetic fields 失效
    使用垂直和平面内的脉冲磁场传输布线

    公开(公告)号:US5179532A

    公开(公告)日:1993-01-12

    申请号:US811912

    申请日:1991-12-23

    IPC分类号: G11C19/08

    CPC分类号: G11C19/0816 G11C19/0825

    摘要: A Bloch line transferring method or system comprises a step of transferring only a first Bloch line of the Bloch line pair in the magnetic wall in a predetermined direction, and a step of transferring a second Bloch line of the Bloch line pair in the predetermined direction to form the Bloch line pair. It typically comprises applying a magnetic field perpendicular to a film plane of a magnetic thin film having the magnetic wall, to the magnetic thin film, and applying a magnetic field parallel to the film plane of the magnetic film, to the magnetic thin film along the magnetic wall.

    摘要翻译: 布洛赫线转移方法或系统包括在预定方向上仅将Bloch线对的第一布洛赫线传输到磁壁中的步骤,以及将布洛赫线对的第二布洛赫线沿预定方向转移到 形成布洛赫线对。 其通常包括将垂直于具有磁性壁的磁性薄膜的膜平面的磁场施加到磁性薄膜,并且将平行于磁性膜的膜平面的磁场施加到沿着磁性膜的磁性薄膜的磁性薄膜 磁墙。

    Thermal head
    10.
    发明授权
    Thermal head 失效
    热头

    公开(公告)号:US4296309A

    公开(公告)日:1981-10-20

    申请号:US906359

    申请日:1978-05-15

    CPC分类号: H05B3/12 H01C7/006 H01L49/02

    摘要: A thermal head of the present invention is composed of a substrate, a resistive heater element formed on the substrate, and electrically conductive members to supply electric power to the resistive heater element, wherein the resistive heater element contains a metal boride as the principal constituent. The thermal head of this construction is capable of selecting its resistivity to a high value and causing a large electric current to flow in the form of short pulses for the purpose of high speed printing, hence it is stable against repetitive pulse applications over a long period of time.

    摘要翻译: 本发明的热敏头由基板,形成在基板上的电阻加热元件和向电阻加热元件供电的导电部件构成,其中电阻加热元件含有金属硼化物作为主要成分。 该结构的热敏头能够将其电阻率选择为高值,并且以短脉冲的形式使大电流以高速打印的目的流动,因此其对于长时间的重复脉冲应用是稳定的 的时间。